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New Massive Vapor‐Liquid‐Solid Deposition of α‐Al 2 O 3 Fibers
Author(s) -
Cerecedo C.,
Valcárcel V.,
Gómez M.,
Drubi I.,
Guitián F.
Publication year - 2007
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700061
Subject(s) - materials science , volatility (finance) , chemical vapor deposition , aluminium , chemical engineering , deposition (geology) , metal , yield (engineering) , analytical chemistry (journal) , nanotechnology , metallurgy , organic chemistry , chemistry , paleontology , sediment , biology , engineering , financial economics , economics
In this work, it is described a newly featured massive Vapor‐Liquid‐Solid deposition process, in which the yield of conventional VLS reaction is increased in several orders of magnitude. Al 2 O 3 fibers and crystals are here obtained from aluminum and silica in Ar atmospheres containing metal vapors and at low partial pressures of H 2 O. The relationship between the controlled incorporation of H 2 O(g) and the observed features of the alumina crystals (and of the VLS itself) is assessed in terms of the respective Al‐Al 2 O 3 and Si‐SiO 2 volatility diagrams.